J. N. Larned, History for ready reference, Volume 1…
“ Charles I., the founder of the proud fortunes of this Third House, was ambitious in character, and events long favoured his ambition. Count of Provence, through the inheritance of his consort, had not long been invested with Anjou and Maine, ere he was invited to the conquest of Sicily [see ITALY (SOUTHERN) : A. D. 1250-1268] ." The Third House of Anjou ended in the person of John, who became King of France in 1350. In 1356 he invested his son Louis with Anjou and Maine, and in 1360 the latter was created the first Duke of Anjou. ”
